I'm trying to build a VF component that references an attribute that is an instance of a child class. I have a top level class A and inner class B and C which extend class A and i am trying to pass the visualforce component instance of class B. Since only top level classes can be passed to component i have declared the attribute as of type A and i am passing instance of class b to the component. But i am getting this error "Cannot convert the value of '{!classA}' to the expected type. " My question is can we pass child instances to component.
Visualforce Component
<apex:component>component controller="ComponentController">
<apex:attribute name="list"
type="SObjectWrapper[]"
required="true"
assignTo="{!sobjectWrappers}"
description="" />
<!--Some Code-->
</apex:component>
Component Controller
public with sharing class ComponentController{
public List<SObjectWrapper> sobjectWrappers {
get;
set;
}
}
Visualforce Page
<apex:page controller="DemoController">
<apex:form >
<apex:repeat value="{!mapWrapper}" var="item">
<c:DynamicTable list="{!mapWrapper[item]}" />
</apex:repeat>
</apex:form>
</apex:page>
Page Controller
public with sharing class DemoController {
public Map<ParentNode,List<LevelOneNode>> mapWrapper{
get ;
set ;
}
// Some Code which populates the list
}
Base Class
public abstract class SObjectWrapper implements Comparable {
// Some Code
}
Child Class
public class ParentNode extends SObjectWrapper {
public List<LevelOneNode> levelOneNodes {
get;
set;
}
// Some Code
}
public class LevelOneNode extends SObjectWrapper {
// Some Code
}
Also, if i directly pass instance of an child list the code is working, so the issue seems to be coming while iterating over map.